utah pilot training program awwa m36 water audits ...€¢training on awwa water balance and audit...
TRANSCRIPT
Utah – Pilot Training Program
AWWA M36 Water Audits & Loss Control
Introductory Webcast
July 19, 2016 – 9:00a MT
1
Today’s Webcast
• Program overview & orientation – objectives, activities & schedule
• AWWA Water Balance terms and concepts
• Data needed & sources
• Next steps for data gathering
• Who and what to bring to the 10/14 Workshop
• Q&A
. . . If you have questions, please feel free to type them in at any time. . .We will have a Q&A at the end of the webcast. . .
2
Utility Partners
3
• Kearns Improvement District• Granger Hunter Improvement District • City of Orem
Meet the Trainers
Will Jernigan, P.E.
Tory Wagoner, P.E.,P.L.S.
Steve Cavanaugh, P.E.
Drew Blackwell
4
Water Loss Control Drivers
5
Landscape of Varying Levels of Water Loss Management Policy
8
Attitude
Behavior Technique
Program Overview –
What to expect
11
What you put in to the Program
• Program is being offered free
• Today’s webcast
• Homework – gathering your data
• Workshop participation (October)
• Give feedback for future training & technical assistance needs
• Apply workshop learning at your utility
12
• Training on AWWA water balance and audit software
• Training on data validation for the water audit
• Forging next steps in your Water Loss Control Program
13
What you get out of the Program
Functional
Focus Area
Audit Data
Collection
Short-term
loss control
Long-term
loss control
Target-setting
Benchmarkin
g
Identify Best Practices/ Best in
class - the ILI is very reliable as a
real loss performance indicator
for best in class service
For validity scores of 50 or below, the shaded blocks should not be focus areas until better data validity is achieved.
Preliminary Comparisons - can
begin to rely upon the
Infrastructure Leakage Index (ILI)
for performance comparisons for
real losses (see below table)
Performance Benchmarking - ILI
is meaningful in comparing real
loss standing
Continue incremental
improvements in short-term and
long-term loss control
interventions
Establish long-term apparent and
real loss reduction goals (+10
year horizon)
Establish mid-range (5 year
horizon) apparent and real loss
reduction goals
Evaluate and refine loss control
goals on a yearly basis
Begin to assess long-term needs
requiring large expenditure:
customer meter replacement,
water main replacement program,
new customer billing system or
Automatic Meter Reading (AMR)
system.
Begin to assemble economic
business case for long-term
needs based upon improved data
becoming available through the
water audit process.
Conduct detailed planning,
budgeting and launch of
comprehensive improvements for
metering, billing or infrastructure
management
Annual water audit is a reliable
gauge of year-to-year water
efficiency standing
Research information on leak
detection programs. Begin
flowcharting analysis of customer
billing system
Conduct loss assessment
investigations on a sample
portion of the system: customer
meter testing, leak survey,
unauthorized consumption, etc.
Establish ongoing mechanisms
for customer meter accuracy
testing, active leakage control
and infrastructure monitoring
Refine, enhance or expand
ongoing programs based upon
economic justification
Stay abreast of improvements in
metering, meter reading, billing,
leakage management and
infrastructure rehabilitation
Launch auditing and loss control
team; address production
metering deficiencies
Analyze business process for
customer metering and billing
functions and water supply
operations. Identify data gaps.
Establish/revise policies and
procedures for data collection
Refine data collection practices
and establish as routine business
process
Water Audit Data Validity Level / Score
Level I (0-25) Level II (26-50) Level III (51-70) Level IV (71-90) Level V (91-100)
Added Benefits for Attending the Workshop
• Connectivity with your peers – others who are working on the same thing you are
• Lunch!
14
Pilot Training Program Overview
• Kickoff Webcast - Pilot Group Today
• Gather and provide data to us 9/21/16
• Webcast to prep for 10/13 (Big Group) 9/22/16
• Big group training workshop 10/13/16
• 1-on-1 Focus Group Session (Pilot Group) 10/14/16
• Post-Program Survey to participants Nov 2016
• Program report Dec 2016
15
Water Auditing
Foundations
16
Basic Concepts
1. Utilize the Water Balance.
2. Separate Total Water Loss into Real and Apparent Loss.
3. Separate Real and Apparent Loss into their subcomponents.
4. Use metrics in units of Volume, Value & Validity.17
RealLosses
ApparentLosses
UnbilledAuthorized
Consumption
BilledAuthorized
Consumption
Non-Revenue
Water
RevenueWater
Leakage & Overflows at Storage
Billed Unmetered Consumption
Billed Metered Consumption
Billed Water Exported
Leakage on Service Lines(before the meter)
Leakage on Mains
Customer Metering & Data Inaccuracies
Unauthorized Consumption
Unbilled Unmetered Consumption
Unbilled Metered Consumption
WaterImported
OwnSources
TotalSystemInput
( allowfor
knownerrors )
WaterLosses
AuthorizedConsumption
WaterExported
WaterSupplied
AWWA Standard Water Balance
18
RealLosses
ApparentLosses
UnbilledAuthorized
Consumption
BilledAuthorized
Consumption
Non-Revenue
Water
RevenueWater
Leakage & Overflows at Storage
Billed Unmetered Consumption
Billed Metered Consumption
Billed Water Exported
Leakage on Service Lines(before the meter)
Leakage on Mains
Customer Metering & Data Inaccuracies
Unauthorized Consumption
Unbilled Unmetered Consumption
Unbilled Metered Consumption
WaterImported
OwnSources
TotalSystemInput
( allowfor
knownerrors )
WaterLosses
AuthorizedConsumption
WaterExported
WaterSupplied
AWWA Standard Water Balance
19
Non-Revenue Water
1. Water put into the system that does NOT return revenue to the Utility.
2. All Water Loss plus Unbilled Consumption.
3. “Unaccounted-for water” has been abandoned as an obsolete practice (2003).
20
RealLosses
ApparentLosses
UnbilledAuthorized
Consumption
BilledAuthorized
Consumption
Non-Revenue
Water
RevenueWater
Leakage & Overflows at Storage
Billed Unmetered Consumption
Billed Metered Consumption
Billed Water Exported
Leakage on Service Lines(before the meter)
Leakage on Mains
Customer Metering & Data Inaccuracies
Unauthorized Consumption
Unbilled Unmetered Consumption
Unbilled Metered Consumption
WaterImported
OwnSources
TotalSystemInput
( allowfor
knownerrors )
WaterLosses
AuthorizedConsumption
WaterExported
WaterSupplied
AWWA Standard Water Balance
21
RealLosses
ApparentLosses
UnbilledAuthorized
Consumption
Non-Revenue
Water
RealLosses
ApparentLosses
UnbilledAuthorized
Consumption
Non-Revenue
Water
Physical loss - leakage
Cost impacts at ‘wholesale’ rate
Tools for control include leakage and
pressure management
Non-physical / revenue loss - slow meters,
billing issues and theft
Cost impacts at ‘retail’ rate.
Tools for control include data management,
quality control policies/practices, & meter
testing & repair
Fire Dept Usage
Operational Flushing
Tools for control include efficient flushing
practices and awareness campaigns
AWWA Free Water Audit Software
Water Audit Report for:
Reporting Year:
All volumes to be entered as: MILLION GALLONS (US) PER YEAR
Master Meter Error Adjustments
WATER SUPPLIED Pcnt: Value:
Volume from own sources: 5 1,000.000 MG/Yr 1 MG/Yr
Water imported: MG/Yr MG/Yr
Water exported: 1 100.000 MG/Yr 9 MG/Yr
Enter negative % or value for under-registration
WATER SUPPLIED: 825.000 MG/Yr Enter positive % or value for over-registration.
AUTHORIZED CONSUMPTION
Billed metered: 8 700.000 MG/Yr
Billed unmetered: 9 50.000 MG/Yr
Unbilled metered: MG/Yr Pcnt: Value:
Unbilled unmetered: 9 10.313 MG/Yr 1.25% MG/Yr24061
AUTHORIZED CONSUMPTION: 760.313 MG/Yr
WATER LOSSES (Water Supplied - Authorized Consumption) 64.688 MG/Yr
Apparent Losses Pcnt: Value:
Unauthorized consumption: 10 3.000 MG/Yr 0.25% MG/Yr
Customer metering inaccuracies: 5 7.071 MG/Yr 1.00% MG/Yr
Systematic data handling errors: 4 5.000 MG/Yr 0.25% MG/Yr
Apparent Losses: 15.071 MG/Yr
Real Losses (Current Annual Real Losses or CARL)
Real Losses = Water Losses - Apparent Losses: 49.617 MG/Yr
WATER LOSSES: 64.688 MG/Yr
NON-REVENUE WATER
NON-REVENUE WATER: 75.000 MG/Yr
= Water Losses + Unbilled Metered + Unbilled Unmetered
SYSTEM DATA
Length of mains: 7 100.0 miles
Number of active AND inactive service connections: 6 1,000
Service connection density: 10 conn./mile main
Yes
Average length of customer service line: ft
Average operating pressure: 6 60.0 psi
COST DATA
Total annual cost of operating water system: 5 $1,000,000 $/Year
Customer retail unit cost (applied to Apparent Losses): 7 $3.50
Variable production cost (applied to Real Losses): 7 $3,000.00 $/Million gallons
WATER AUDIT DATA VALIDITY SCORE:
PRIORITY AREAS FOR ATTENTION:
1: Volume from own sources
2: Customer metering inaccuracies
3: Total annual cost of operating water system
Based on the information provided, audit accuracy can be improved by addressing the following components:
$/1000 gallons (US)
100.000
<----------- Enter grading in column 'E' and 'J' ---------->
Unauthorized consumption volume entered is greater than the recommended default value
5.000
*** YOUR SCORE IS: 60 out of 100 ***
A weighted scale for the components of consumption and water loss is included in the calculation of the Water Audit Data Validity Score
100.000
3.000
25.000
Average length of customer service line has been set to zero and a data grading score of 10 has been applied
Are customer meters typically located at the curbstop or property line?
AWWA Free Water Audit Software:
Reporting Worksheet
Default option selected for Unbilled unmetered - a grading of 5 is applied but not displayed
1.000
2013 1/2013 - 12/2013
Northern San Leandro Combined Water Sewer Storm Utility District (0007900)
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Please enter data in the white cells below. Where available, metered values should be used; if metered values are unavailable please estimate a value. Indicate your confidence in the accuracy of the input data by grading each component (n/a or 1-10) using the drop-down list to the left of the input cell. Hover the mouse over the cell to obtain a description of the grades
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(length of service line, beyond the property boundary, that is the responsibility of the utility)
Use buttons to selectpercentage of water
suppliedOR
value
?Click here:
for help using option buttons below
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+ Click to add a comment
WAS v5.0
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American Water Works Association.Copyright © 2014, All Rights Reserved.
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+ Use Customer Retail Unit Cost to value real losses
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To select the correct data grading for each input, determine the highest grade where the utility meets or exceeds all criteria for that grade and all grades below it.
Defaults provided
Free
awwa.org/waterlosscontrol
Industry Standard
(M36)
~20 Potential Inputs
~10 Inputs for Typical
AWWA M36 Water Audit
Data Validity Scoring
AWWA developed a detailed grading matrix for Water Audit inputs
Based on the utility’s policies and practices for data collection, data management, data archiving, quality control procedures, and derivation of audit inputs
Provides a quantitative measure of the reliability
In computer science, data validation is the process of ensuring
that a program operates on clean, correct and useful data.
AWWA Free Water Audit Software© (V5.0)Data Grading for each Water Audit input (excerpt)
AWWA Free Water Audit Software© (V5.0)Guidance on Use of Water Audit Data, based on Level of
Data Validity
Functional
Focus Area
Audit Data
Collection
Short-term
loss control
Long-term
loss control
Target-setting
Benchmarkin
g
Identify Best Practices/ Best in
class - the ILI is very reliable as a
real loss performance indicator
for best in class service
For validity scores of 50 or below, the shaded blocks should not be focus areas until better data validity is achieved.
Preliminary Comparisons - can
begin to rely upon the
Infrastructure Leakage Index (ILI)
for performance comparisons for
real losses (see below table)
Performance Benchmarking - ILI
is meaningful in comparing real
loss standing
Continue incremental
improvements in short-term and
long-term loss control
interventions
Establish long-term apparent and
real loss reduction goals (+10
year horizon)
Establish mid-range (5 year
horizon) apparent and real loss
reduction goals
Evaluate and refine loss control
goals on a yearly basis
Begin to assess long-term needs
requiring large expenditure:
customer meter replacement,
water main replacement program,
new customer billing system or
Automatic Meter Reading (AMR)
system.
Begin to assemble economic
business case for long-term
needs based upon improved data
becoming available through the
water audit process.
Conduct detailed planning,
budgeting and launch of
comprehensive improvements for
metering, billing or infrastructure
management
Annual water audit is a reliable
gauge of year-to-year water
efficiency standing
Research information on leak
detection programs. Begin
flowcharting analysis of customer
billing system
Conduct loss assessment
investigations on a sample
portion of the system: customer
meter testing, leak survey,
unauthorized consumption, etc.
Establish ongoing mechanisms
for customer meter accuracy
testing, active leakage control
and infrastructure monitoring
Refine, enhance or expand
ongoing programs based upon
economic justification
Stay abreast of improvements in
metering, meter reading, billing,
leakage management and
infrastructure rehabilitation
Launch auditing and loss control
team; address production
metering deficiencies
Analyze business process for
customer metering and billing
functions and water supply
operations. Identify data gaps.
Establish/revise policies and
procedures for data collection
Refine data collection practices
and establish as routine business
process
Water Audit Data Validity Level / Score
Level I (0-25) Level II (26-50) Level III (51-70) Level IV (71-90) Level V (91-100)
Homework
28
Homework – Data Gathering
29
Supply data
- Produced
- Purchased
- Metering & testing
Consumption data
- Billed water
- Unbilled water
- Meter reading & billing cycle data
Meter data
- Meter inventory
- Testing policy
- Test data
System & Cost data
- Length of mains
- Connections
- Pressure
- Operating costs
30
31
Homework – Data Gathering
32
We will email you the sheet with this detail on the data request
Available by phone to talk through questions as you are assembling the data
Who Should Attend?
Representation from these key areas:
• Supply
• Operations
• Billing
• Management
33
Bring your laptop
Utah – Pilot Training Program
AWWA M36 Water Audits & Loss Control
Questions?
34